The display panel includes an auxiliary color filter and the electronic device that includes the display panel.

Abstract

This disclosure relates to display panels and electronic devices. The display panel includes a substrate and first to third light-emitting diodes spaced apart from each other on the substrate. A touch-sensing layer is disposed on the first to third light-emitting diodes and has a first opening and a second opening respectively overlapping the first and second light-emitting diodes. A first auxiliary color filter is disposed in the first opening of the touch-sensing layer. A second auxiliary color filter is disposed in the second opening of the touch-sensing layer. The first color filter is disposed on the touch-sensing layer and overlaps with the first light-emitting diode. The second color filter is disposed on the touch-sensing layer and overlaps with the second light-emitting diode. A third color filter is disposed on the touch-sensing layer and overlaps with the third light-emitting diode. The first and second auxiliary color filters transmit light of the same color.

Description

[0001] Cross-references to related applications

[0002] This application claims priority to Korean Patent Application No. 10-2025-0018094, filed on February 12, 2025, with the Korean Intellectual Property Office, the disclosure of which is incorporated herein by reference in its entirety. Technical Field

[0003] This disclosure relates to display panels, and more specifically, to display panels including auxiliary color filters and electronic devices including display panels. Background Technology

[0004] Electronic devices can be configured to display images using a display panel disposed therein. The display panel can be configured to visually display data. The display panel can also be configured to use light-emitting diodes (LEDs) to provide images. Because display panels are now used in a wide variety of electronic devices, various attempts have been made to design display panels with improved quality. Summary of the Invention

[0005] The display panel includes a substrate and a first light-emitting diode (LED), a second LED, and a third LED, each disposed on the substrate and spaced apart from each other. A touch-sensing layer is disposed on each of the first, second, and third LEDs. The touch-sensing layer has a first opening overlapping the first LED and a second opening overlapping the second LED. A first auxiliary color filter is disposed in the first opening of the touch-sensing layer, a second auxiliary color filter is disposed in the second opening of the touch-sensing layer, the first color filter is disposed on the touch-sensing layer and overlaps with the first LED, the second color filter is disposed on the touch-sensing layer and overlaps with the second LED, and a third color filter is disposed on the touch-sensing layer and overlaps with the third LED. The first and second auxiliary color filters are configured to transmit light of the same color.

[0006] The first color filter can directly contact the upper surface of the first auxiliary color filter, and the second color filter can directly contact the upper surface of the second auxiliary color filter.

[0007] The first auxiliary color filter and the second auxiliary color filter may each include a scatterer.

[0008] The first auxiliary color filter may have a closed-loop shape that overlaps with the edge region of the first color filter, and the second auxiliary color filter may have a closed-loop shape that overlaps with the edge region of the second color filter.

[0009] The upper surfaces of the first auxiliary color filter, the second auxiliary color filter, and the touch sensing layer can be disposed in the same plane.

[0010] The first and second auxiliary color filters can be configured to transmit light of a color that is a combination of a first light emitted from a first light-emitting diode and a second light emitted from a second light-emitting diode.

[0011] The first auxiliary color filter and the second auxiliary color filter may each include a yellow dye.

[0012] The first and second auxiliary color filters can each be configured to block light at wavelengths of 500 nm or smaller.

[0013] The display panel includes: a substrate; a first light-emitting diode (LED) disposed above the substrate and configured to emit first light of a first color; a second LED disposed above the substrate and configured to emit second light of a second color; a third LED disposed above the substrate and configured to emit third light of a third color; a first color filter overlapping the first LED and transmitting light of the first color; a second color filter overlapping the second LED and transmitting light of the second color; a third color filter overlapping the third LED and transmitting light of the third color; a first auxiliary color filter disposed between the first LED and the first color filter; and a second auxiliary color filter disposed between the second LED and the second color filter. The first auxiliary color filter and the second auxiliary color filter are each configured to transmit light of a color resulting from the combination of the first light and the second light.

[0014] The display panel may further include a touch sensing layer disposed between the first to third color filters and the first to third light-emitting diodes, and including a first opening overlapping the first light-emitting diode and a second opening overlapping the second light-emitting diode. A first auxiliary color filter may be disposed in the first opening of the touch sensing layer, and a second auxiliary color filter may be disposed in the second opening of the touch sensing layer.

[0015] The upper surfaces of the first auxiliary color filter, the second auxiliary color filter, and the touch sensing layer can be disposed in the same plane.

[0016] The first auxiliary color filter and the second auxiliary color filter may each include a scatterer.

[0017] The first auxiliary color filter may have a closed-loop shape that overlaps with the edge region of the first color filter, and the second auxiliary color filter may have a closed-loop shape that overlaps with the edge region of the second color filter.

[0018] The first auxiliary color filter and the second auxiliary color filter may each include a yellow dye.

[0019] The first and second auxiliary color filters can each be configured to block light at wavelengths of 500 nm or smaller.

[0020] The first, second, and third light-emitting diodes can be configured to emit light of different colors from each other.

[0021] An electronic device includes a display panel and a processor configured to drive the display panel. The display panel includes a substrate and a first light-emitting diode (LED), a second LED, and a third LED disposed on the substrate and spaced apart from each other. A touch-sensing layer is disposed on the first, second, and third LEDs. The touch-sensing layer has a first opening overlapping the first LED and a second opening overlapping the second LED. A first auxiliary color filter is disposed in the first opening of the touch-sensing layer, a second auxiliary color filter is disposed in the second opening of the touch-sensing layer, the first color filter is disposed on the touch-sensing layer and overlaps with the first LED, the second color filter is disposed on the touch-sensing layer and overlaps with the second LED, and a third color filter is disposed on the touch-sensing layer and overlaps with the third LED. The first and second auxiliary color filters are configured to transmit light of the same color.

[0022] The first auxiliary color filter and the second auxiliary color filter may each include a scatterer.

[0023] The first auxiliary color filter and the second auxiliary color filter may each include a yellow dye.

[0024] The first and second auxiliary color filters can be configured to block light at wavelengths of 500 nm or smaller. Attached Figure Description

[0025] The above and other aspects and features of certain embodiments of the present disclosure will become more apparent from the following description taken in conjunction with the accompanying drawings, in which: Figure 1 It is a block diagram of an electronic device according to an embodiment; Figure 2 , Figure 3 and Figure 4 It is a schematic perspective view of an electronic device according to various embodiments; Figure 5 It is a schematic plan view of an electronic device according to an embodiment; Figure 6 This is an equivalent circuit diagram of the display panel according to the implementation method; Figure 7 This is a cross-sectional view of the display panel according to the embodiment; Figure 8A This is a cross-sectional view of the display panel according to the embodiment; Figure 8B This is a plan view of the display panel according to the implementation method; Figure 8C This is a plan view of the display panel according to the implementation method; Figure 9 It is a cross-sectional view of the display panel according to the embodiment; and Figure 10 This is a cross-sectional view of the display panel according to the embodiment. Detailed Implementation

[0026] Embodiments will now be described in detail, examples of which are shown in the accompanying drawings, wherein the same reference numerals may denote the same elements throughout the specification and drawings. In this respect, the embodiments may take different forms and should not necessarily be construed as limited to the description set forth herein. Therefore, embodiments are described below with reference to the accompanying drawings to explain various aspects of this specification. As used herein, the term “and / or” includes any and all combinations of one or more of the associated listed items. Throughout this disclosure, the expression “at least one of a, b, and c” means: only a, only b, only c, both a and b, both a and c, both b and c, all of a, b, and c, or variations thereof.

[0027] Because this disclosure allows for various modifications and multiple implementations, certain implementations will be shown in the accompanying drawings and described in the detailed description. The effects and features of this disclosure, as well as the methods for implementing them, will be elucidated with reference to the embodiments described in detail below with reference to the accompanying drawings. However, this disclosure is not necessarily limited to the embodiments described below and can be implemented in various forms.

[0028] In the following description, embodiments will be described with reference to the accompanying drawings, wherein the same or corresponding elements are given the same reference numerals when described with reference to the drawings, and in cases where an element is not described in detail with reference to the drawings, it will be understood that the element is at least similar to a corresponding element that has been described elsewhere in this disclosure.

[0029] In the embodiments described below, when various elements such as layers, regions, plates, etc., are disposed "on" another element, not only can the elements be disposed "directly" on said other element, but the other element can also be disposed between them. Furthermore, although each drawing may represent one or more specific embodiments of this disclosure, each drawing is drawn to scale so that relative lengths, thicknesses, and angles can be inferred from them. It will be understood that the invention is not necessarily limited to the relative lengths, thicknesses, and angles shown. These values ​​can be modified within the spirit and scope of this disclosure, for example, thereby allowing for manufacturing limitations, etc.

[0030] In the following implementation, terms such as first and second are not necessarily used in a limiting sense and may be used for the purpose of distinguishing one element from another.

[0031] In the following implementation, the terms “comprising” or “including” as used herein specify the presence of the stated features or elements, but do not preclude the addition of one or more other features or elements.

[0032] In this specification, "A and / or B" means A or B, or A and B. Furthermore, "at least one of A and B" means A or B, or A and B.

[0033] In the following embodiments, when a layer, region, or element is referred to as being connected, this includes not only cases where the layer, region, or element is directly connected, but also cases where the layer, region, or element is indirectly connected and another layer, region, or element is disposed between them. For example, in this specification, when a layer, region, or element is referred to as being electrically connected, this means that the layer, region, or element is directly electrically connected and / or that the layer, region, or element is indirectly electrically connected and another layer, region, or element is disposed between them.

[0034] In the following embodiments, the expression for the x-direction can represent the +x direction and the -x direction, for example, the ±x direction. In the following embodiments, the expression for the y-direction can represent the +y direction and the -y direction, for example, the ±y direction. In the following embodiments, the expression for the z-direction can represent the +z direction and the -z direction, for example, the ±z direction.

[0035] The display panel (or display device) according to the embodiments can be applied to various electronic devices. The electronic device according to the embodiments may include a display panel (or display device), and may also include a module or device having an additional function different from that of the display panel (or display device).

[0036] Embodiments of this disclosure relate to display panels and electronic devices incorporating an improved color filter structure for light-emitting diode (LED) displays. This structure can improve display quality and optimize manufacturing processes, particularly inkjet deposition processes.

[0037] In embodiments of this disclosure, auxiliary color filters are located below the main color filters in the display stack. The display panel includes three main LEDs (typically red, green, and blue) each located above a substrate. A touch-sensing layer with specific openings is located above these LEDs. Auxiliary color filters are disposed in openings corresponding to two of the LEDs (e.g., red and green). These auxiliary color filters are configured to transmit the same color, such as yellow, formed by the overlap of red and green light.

[0038] Above the touch-sensing layer, primary color filters are deposited to correspond to each LED. Red, green, and blue color filters allow light in their respective spectral bands to pass through. By incorporating a yellow auxiliary color filter beneath the red and green color filters, embodiments of this disclosure eliminate the need to include yellow dye in the inks used to form the red and green color filters. This reduction in dye concentration lowers ink viscosity, making inkjet printing processes more efficient and less prone to defects such as nozzle clogging or uneven diffusion.

[0039] Additionally, auxiliary color filters may include scatterers, which can be microscopic particles of diffused light, thereby further improving the uniformity and visibility of the emitted light. These auxiliary color filters may have a closed-loop or frame shape that overlaps with the edge of the main color filter and helps improve color purity and contrast.

[0040] This dual-layer color filtering method not only improves display performance but also supports more reliable and scalable manufacturing by addressing limitations in ink formulation and jetting performance. This display structure is particularly applicable to high-performance consumer electronics, including smartphones, tablets, and smartwatches, as well as other devices requiring vibrant and accurate color reproduction.

[0041] Figure 1 This is a block diagram of the electronic device 10 according to an embodiment. (See reference) Figure 1 The electronic device 10 may include a display panel 11, a processor 12, a memory 13, and a power module 14.

[0042] Processor 12 may include at least one of a central processing unit (CPU), an application processor (AP), a graphics processing unit (GPU), a communication processor (CP), an image signal processor (ISP), and a controller. In some implementations, from a functional or structural point of view, processor 12 may be divided into two or more parts. As an example, processor 12 may include a main processor (including the CPU) in the form of a first driver chip and an auxiliary processor (including the controller) in the form of a second driver chip, wherein the auxiliary processor receives image signals from the main processor and processes the image signals to match the interface specifications of the display panel 11.

[0043] The memory 13 may include at least one of non-volatile memory and volatile memory. The memory 13 may store data for the operation of the processor 12 or the display panel 11. When the processor 12 executes the application stored in the memory 13, image data signals and / or input control signals may be transmitted to the display panel 11, and the display panel 11 may process the provided signals and output image information through the display screen.

[0044] The power module 14 may include a power module such as a power adapter or battery cell, and a power conversion module that converts the power supplied by the power module to generate the power required for the operation of the electronic device 10. The power conversion performed by the power conversion module may include, but is not necessarily limited to, DC-DC conversion, AC-DC conversion, and DC-AC conversion.

[0045] The electronic device 10 may also include an input module 15, an output module 16 that provides an output different from the generated image, and / or a communication module 17.

[0046] Input module 15 can provide input information to processor 12 and / or display panel 11. Input module 15 may include not only physical buttons, keyboards, and microphones, but also various sensor modules. Examples of sensor modules may include not only touch sensors, pressure sensors, distance sensors, position sensors, digitizers, motion recognition sensors, camera sensors, photodetectors, photoelectric conversion sensors, and temperature sensors, but also biometric sensors such as blood pressure sensors, blood glucose sensors, electrocardiogram sensors, and heart rate sensors.

[0047] Output module 16 can receive information different from the image received from processor 12 and can provide that information to the user. Examples of output module 16 may include a sound module, a tactile module and / or a light-emitting module, and may include unique functional modules of other devices (e.g., a cooling module of a refrigerator).

[0048] The communication module 17 is responsible for sending / receiving information between the electronic device 10 and external devices, and may include a receiver and a transmitter. The communication module 17 may include various wireless communication modules such as mobile communication modules, Wi-Fi (Wireless Fidelity) modules and Bluetooth modules, and may also include various wired communication modules.

[0049] At least one element of the electronic device 10 may be included in the display device. Furthermore, some of the various modules functionally included in a single module may be included in the display device, and some other modules may be disposed separately from the display device. As an example, the display device may include a display panel 11, and the processor 12, memory 13, and power module 14 may be provided as another device within the electronic device 10 (rather than the display device). As an example, the power module 14 may be fabricated in the display device and may provide power to the processor 12 and memory 13 disposed within the electronic device 10 (rather than the display device), and this disclosure is not necessarily limited thereto.

[0050] Figure 2 , Figure 3 and Figure 4These are schematic diagrams of electronic devices according to various embodiments. Figure 2 , Figure 3 and Figure 4 Examples of various electronic devices that utilize display panels according to different implementations are shown.

[0051] Figure 2 Examples of electronic devices shown are a smartphone 10_1a, a tablet computer 10_1b, a laptop / notebook computer 10_1c, a TV 10_1d, and a computer monitor 10_1e.

[0052] In addition to the display panel, the smartphone 10_1a may also include an input module such as a touch sensor and a communication module. The smartphone 10_1a can process information received through the communication module or other input modules and display that information through the display panel of the display device.

[0053] Similar to the smartphone 10_1a, the tablet computer 10_1b, laptop / notebook computer 10_1c, TV 10_1d, and computer monitor 10_1e may include a display panel and an input module, and may also include a communication module as appropriate.

[0054] As an example, Figure 3 This illustration shows an application of electronic devices, including a display panel, to wearable electronic devices. Wearable electronic devices may include smart glasses 10_2a, a head-mounted display 10_2b, and a smartwatch 10_2c.

[0055] The smart glasses 10_2a and the head-mounted display 10_2b may include a display panel that outputs and displays images and a reflector that reflects and outputs the display to the user's eyes, and may provide the user with a virtual reality or augmented reality screen in this way.

[0056] The smartwatch 10_2c may include a biometric sensor as an input device and provide the user with biological information identified by the biometric sensor through a display panel.

[0057] As an example, Figure 4 This illustrates an application of an electronic device, including a display panel, to a vehicle. As an example, the electronic device 10_3 can be applied to a car's dashboard, center panel, etc., or it can be applied to a center information display (CID) mounted on the car's dashboard or an interior mirror display replacing the side mirrors.

[0058] Electronic devices using the display panel according to the embodiments can include not only display-centric devices such as digital billboards, electronic billboards, and / or portable game consoles, but also various household appliances such as refrigerators, washing machines, dryers, air conditioners, and / or robotic vacuum cleaners that display information via the display panel. Furthermore, where the display panel has the function of transmitting light, the display panel can be applied to electronic devices or smart windows that display a background and a displayed image together, such as transparent display devices. The type of electronic device according to the embodiments is not necessarily limited to this example, and various other electronic devices can be applied.

[0059] Figure 5 This is a schematic plan view of the electronic device 10 according to the embodiment.

[0060] As an implementation method, although Figure 5 The illustration shows the electronic device 10 as a smartphone, but this is for ease of description and the present disclosure is not necessarily limited thereto. The electronic device 10 may include a display panel 11 and a housing 19. In embodiments, the display panel 11 may be housed within the housing 19. The housing 19 is not necessarily limited to... Figure 5 The form shown is used to implement this, and any housing can be classified as housing 19 as indicated in this specification, as long as the housing provides space therein to accommodate the display panel 11, without any limitations on type or shape. As an example, housing 19 does not need to completely surround the display panel 11 and may partially cover the display panel 11.

[0061] refer to Figure 5 The display panel 11 may include a display area DA and a peripheral area PA outside the display area DA. For example, the display area DA and the peripheral area PA outside the display area DA may be defined within the display panel 11. For example, the display panel 11 may include a substrate 100 (see...). Figure 7 Furthermore, the display area DA and the peripheral area PA can be defined within the substrate 100.

[0062] Pixels can be disposed in the display area DA. A pixel may include at least one light-emitting diode (LED) and pixel circuitry connected to the LED to drive it. The LED driven by the pixel circuitry can be configured to emit light of a specific color (e.g., a specific wavelength band). The display panel 11 can provide an image by emitting light from multiple LEDs supplied to the multiple pixels. In one embodiment, a pixel may include multiple sub-pixels grouped together. In one embodiment, a sub-pixel may include a corresponding LED and a corresponding sub-pixel circuitry. In one embodiment, LEDs supplied to the multiple sub-pixels grouped together as a pixel can be configured to emit light of different colors (e.g., wavelength bands) from each other. The peripheral area PA is a non-display area, and signal lines and / or voltage lines for driving the LEDs can be disposed in the peripheral area PA.

[0063] Despite Figure 5 The display panel 11 and display area DA are shown to have a generally quadrilateral shape with rounded corners, but this disclosure is not necessarily limited to this. The display panel 11 and / or display area DA can have various shapes, such as polygonal shapes, circular shapes, elliptical shapes, irregular shapes, etc.

[0064] Figure 6 This is an equivalent circuit diagram of the display panel according to the implementation method.

[0065] refer to Figure 6 A light-emitting diode (LED) corresponding to a pixel can be electrically connected to a pixel circuit PC. The pixel circuit PC may include a first transistor T1, a second transistor T2, and a storage capacitor Cst. The pixel circuit PC can be electrically connected to signal lines and voltage lines. The signal lines may include a scan signal line GWL and a data line DL, and the voltage lines may include a first voltage line VDDL and a second voltage line VSSL.

[0066] The second transistor T2 is a data write transistor and can be electrically connected to the scan signal line GWL and the data line DL. The scan signal line GWL can provide a scan signal GW to the gate of the second transistor T2. The second transistor T2 is configured to transmit a data signal Dm to the first transistor T1 (e.g., the gate of the first transistor T1) according to the scan signal GW input from the scan signal line GWL, wherein the data signal Dm is input from the data line DL.

[0067] The storage capacitor Cst can be electrically connected to the second transistor T2 and the first voltage line VDDL, and can store the voltage corresponding to the difference between the voltage transmitted from the second transistor T2 and the first power voltage VDD provided by the first voltage line VDDL.

[0068] The first transistor T1 is a driving transistor and can control the driving current flowing through the light-emitting diode (LED). The first transistor T1 can be connected to a first voltage line VDDL and a storage capacitor Cst. The first transistor T1 can control the driving current flowing from the first voltage line VDDL to the LED in response to the value of the voltage stored in the storage capacitor Cst. The LED can be configured to emit light with a preset brightness corresponding to the driving current. A first electrode (e.g., a pixel electrode or anode) of the LED can be electrically connected to the first transistor T1, and a second electrode (e.g., a counter electrode or cathode) can be electrically connected to a second voltage line VSSL that provides a second power voltage VSS.

[0069] Despite Figure 6 The pixel circuit PC shown includes a switching transistor (e.g., a second transistor T2) and a capacitor (e.g., a storage capacitor Cst), but in another embodiment, the pixel circuit PC may include two or more switching transistors and / or two or more capacitors.

[0070] Figure 7 This is a cross-sectional view of the display panel 11 according to the embodiment. Figure 7 It can be the display area DA of the display panel 11 (see...) Figure 5 ) sectional view.

[0071] refer to Figure 7 Light-emitting diodes (LEDs) and thin-film transistors (TFTs) corresponding to each LED can be disposed on the substrate 100. A thin-film encapsulation layer (TFEL), a touch sensing layer (TSL), and an optical functional layer (OFL) can be sequentially disposed on the LEDs.

[0072] In this embodiment, a first light-emitting diode (LED1), a second light-emitting diode (LED2), and a third light-emitting diode (LED3), and their respective corresponding thin-film transistors (TFTs), can be disposed on the substrate 100. Each of the first light-emitting diode (LED1), the second light-emitting diode (LED2), and the third light-emitting diode (LED3) can be connected to its corresponding thin-film transistor (TFT).

[0073] In this implementation, the first light-emitting diode (LED1), the second light-emitting diode (LED2), and the third light-emitting diode (LED3) can each belong to an individual pixel, or they can belong together to a single pixel. When the first light-emitting diode (LED1), the second light-emitting diode (LED2), and the third light-emitting diode (LED3) belong to a single pixel, they can each belong to their corresponding sub-pixels (e.g., first sub-pixel to third sub-pixel). The thin-film transistor (TFT) connected to each of the first light-emitting diode (LED1), the second light-emitting diode (LED2), and the third light-emitting diode (LED3) can correspond to the above-mentioned reference. Figure 6 This describes a portion of the pixel circuit PC. In an implementation, a thin-film transistor (TFT) may correspond to... Figure 6 The first transistor T1.

[0074] A first insulating layer 101 may be disposed on a substrate 100. The first insulating layer 101 may completely cover the substrate 100. The first insulating layer 101 may planarize and protect the upper surface of the substrate 100. The first insulating layer 101 may include an inorganic insulating material. In an embodiment, the first insulating layer 101 may include at least one inorganic insulating material, such as silicon oxide (SiO2) or silicon nitride (SiN). x The materials used may be silicon oxynitride (SiON), aluminum oxide (Al2O3), titanium oxide (TiO2), tantalum oxide (Ta2O5), hafnium oxide (HfO2), and zinc oxide (ZnO2), and may have a single-layer or multi-layer structure of the above materials. In an embodiment, the first insulating layer 101 may be a buffer layer.

[0075] A thin-film transistor (TFT) can be disposed on the first insulating layer 101. The TFT may include an active layer ACT and a gate electrode GE. TFTs corresponding to the first light-emitting diode (LED1), the second light-emitting diode (LED2), and the third light-emitting diode (LED3), respectively, can be disposed on the first insulating layer 101. The structures of the TFTs corresponding to the first light-emitting diode (LED1), the second light-emitting diode (LED2), and the third light-emitting diode (LED3), respectively, can be similar to each other.

[0076] Semiconductor layer 102 may be disposed on first insulating layer 101. Semiconductor layer 102 may include active layer ACT. Active layer ACT may be patterned to correspond to each thin-film transistor (TFT). Active layer ACT may include a drain region overlapping with drain electrode DE, a source region overlapping with source electrode SE, and a channel region between drain region and source region. Drain region and source region may be doped with impurities (e.g., dopant).

[0077] The second insulating layer 103 may be disposed on the semiconductor layer 102. The second insulating layer 103 may include an inorganic insulating material. In some embodiments, the second insulating layer 103 may include at least one inorganic insulating material, such as silicon oxide (SiO2) or silicon nitride (SiN). x The materials used may include silicon oxynitride (SiON), aluminum oxide (Al2O3), titanium oxide (TiO2), tantalum oxide (Ta2O5), hafnium oxide (HfO2), and zinc oxide (ZnO2), and may have a single-layer or multi-layer structure. In one embodiment, the second insulating layer 103 may be the first gate insulating layer. In another embodiment, such as... Figure 7 As shown, the second insulating layer 103 can completely cover the semiconductor layer 102 and the first insulating layer 101. In one embodiment, the second insulating layer 103 can be patterned to cover only the active layers ACT, without covering the upper surface of the first insulating layer 101 between the active layers ACT. In another embodiment, the second insulating layer 103 can be patterned to cover only a portion of each active layer ACT (e.g., a region such as the channel region overlapping with the gate electrode GE).

[0078] The storage capacitor Cst can be disposed on the second insulating layer 103. The storage capacitor Cst may include a first capacitor electrode CE1 and a second capacitor electrode CE2. The second capacitor electrode CE2 may be disposed above the first capacitor electrode CE1.

[0079] A first conductive layer 104 may be disposed on a second insulating layer 103. The first conductive layer 104 may include a gate electrode GE and a first capacitor electrode CE1. The gate electrode GE may be patterned to correspond to each thin-film transistor (TFT). The gate electrode GE may overlap with the channel region of the active layer ACT. The first capacitor electrode CE1 may be patterned to correspond to each storage capacitor Cst. In an embodiment, the gate electrode GE and the first capacitor electrode CE1 may be formed from a single, uninterrupted continuous structure, such as... Figure 7 As shown in the figure. In an embodiment, the gate electrode GE and the first capacitor electrode CE1 can be provided separately. In an embodiment, the first conductive layer 104 may include at least one of aluminum (Al), platinum (Pt), palladium (Pd), silver (Ag), magnesium (Mg), gold (Au), nickel (Ni), neodymium (Nd), iridium (Ir), chromium (Cr), calcium (Ca), molybdenum (Mo), titanium (Ti), tungsten (W), and copper (Cu), and may include a single-layer structure or a multi-layer structure comprising the above materials.

[0080] A third insulating layer 105 may be disposed on the first conductive layer 104. The third insulating layer 105 may completely cover the first conductive layer 104. The third insulating layer 105 may include an inorganic insulating material. In an embodiment, the third insulating layer 105 may include at least one inorganic insulating material, such as silicon oxide (SiO2) or silicon nitride (SiN). x The materials used may be silicon oxynitride (SiON), aluminum oxide (Al2O3), titanium oxide (TiO2), tantalum oxide (Ta2O5), hafnium oxide (HfO2), and zinc oxide (ZnO2), and may have a single-layer or multi-layer structure of the above materials. In an embodiment, the third insulating layer 105 may be a second gate insulating layer.

[0081] The second conductive layer 106 may be disposed on the third insulating layer 105. The second conductive layer 106 may include a second capacitor electrode CE2 for each storage capacitor Cst. The second capacitor electrode CE2 may be patterned to correspond to each storage capacitor Cst. The second capacitor electrode CE2 may overlap with the first capacitor electrode CE1. In an embodiment, the second conductive layer 106 may include at least one of aluminum (Al), platinum (Pt), palladium (Pd), silver (Ag), magnesium (Mg), gold (Au), nickel (Ni), neodymium (Nd), iridium (Ir), chromium (Cr), calcium (Ca), molybdenum (Mo), titanium (Ti), tungsten (W), and copper (Cu), and may include a single-layer structure or a multi-layer structure comprising the above materials.

[0082] A fourth insulating layer 107 may be disposed on the second conductive layer 106. The fourth insulating layer 107 may completely cover the second conductive layer 106. The fourth insulating layer 107 may include an inorganic insulating material. In an embodiment, the fourth insulating layer 107 may include at least one inorganic insulating material, such as silicon oxide (SiO2) or silicon nitride (SiN). x The materials used may include silicon oxynitride (SiON), aluminum oxide (Al2O3), titanium oxide (TiO2), tantalum oxide (Ta2O5), hafnium oxide (HfO2), and zinc oxide (ZnO2), and may have a single-layer or multi-layer structure. In an embodiment, the fourth insulating layer 107 may be an interlayer insulating layer.

[0083] A third conductive layer 108 may be disposed on a fourth insulating layer 107. The third conductive layer 108 may include a source electrode SE and a drain electrode DE for each thin-film transistor (TFT). The source electrode SE and drain electrode DE may be patterned to correspond to each TFT. The source electrode SE may overlap with the source region of the active layer ACT. The drain electrode DE may overlap with the drain region of the active layer ACT. The source electrode SE may be connected to the active layer ACT (e.g., the source region of the active layer ACT) through openings defined in the second insulating layer 103, the third insulating layer 105, and the fourth insulating layer 107. The drain electrode DE may be connected to the active layer ACT (e.g., the drain region of the active layer ACT) through openings defined in the second insulating layer 103, the third insulating layer 105, and the fourth insulating layer 107. In an embodiment, the third conductive layer 108 may include at least one of aluminum (Al), platinum (Pt), palladium (Pd), silver (Ag), magnesium (Mg), gold (Au), nickel (Ni), neodymium (Nd), iridium (Ir), chromium (Cr), calcium (Ca), molybdenum (Mo), titanium (Ti), tungsten (W), and copper (Cu), and may include a single-layer structure or a multi-layer structure containing the above materials.

[0084] A fifth insulating layer 109 may be disposed on the third conductive layer 108. An opening overlapping the drain electrode DE may be defined in the fifth insulating layer 109. The fifth insulating layer 109 may include an organic insulating material. In an embodiment, the fifth insulating layer 109 may include an organic insulating layer comprising a general polymer such as benzocyclobutene, polyimide, hexamethyldisiloxane, polymethyl methacrylate, or polystyrene; a polymer derivative having a phenol-based group; an acrylic acid-based polymer; an imide-based polymer; an aryl ether-based polymer; an amide-based polymer; a fluorine-based polymer; a p-xylene-based polymer; or a vinyl alcohol-based polymer, and having a single-layer or multi-layer structure of the above materials. In an embodiment, the fifth insulating layer 109 may be a first via layer.

[0085] A fourth conductive layer 110 may be disposed on the fifth insulating layer 109. The fourth conductive layer 110 may include contact metals CM corresponding to the first light-emitting diode LED1, the second light-emitting diode LED2, and the third light-emitting diode LED3, respectively. The contact metals CM may be patterned to overlap with the corresponding light-emitting diodes LED. The contact metals CM may be connected to the corresponding drain electrode DE through openings defined in the fifth insulating layer 109. In embodiments, the fourth conductive layer 110 may include at least one of aluminum (Al), platinum (Pt), palladium (Pd), silver (Ag), magnesium (Mg), gold (Au), nickel (Ni), neodymium (Nd), iridium (Ir), chromium (Cr), calcium (Ca), molybdenum (Mo), titanium (Ti), tungsten (W), and copper (Cu), and may include a single-layer structure or a multi-layer structure comprising the above materials.

[0086] A sixth insulating layer 111 may be disposed on the fourth conductive layer 110. An opening overlapping each contact metal CM of the fourth conductive layer 110 may be defined in the sixth insulating layer 111. The sixth insulating layer 111 may comprise an organic insulating material. In an embodiment, the sixth insulating layer 111 may comprise an organic insulating layer comprising a general polymer such as benzocyclobutene, polyimide, hexamethyldisiloxane, polymethyl methacrylate, or polystyrene; a polymer derivative having a phenol-based group; an acrylic acid-based polymer; an imide-based polymer; an aryl ether-based polymer; an amide-based polymer; a fluorine-based polymer; a p-xylene-based polymer; or a vinyl alcohol-based polymer, and having a single-layer or multi-layer structure of the above materials. In an embodiment, the sixth insulating layer 111 may be a second via layer.

[0087] Multiple light-emitting diodes (LEDs) can be disposed on the sixth insulating layer 111. In an embodiment, first LEDs (LED1) to third LEDs (LED3) can be disposed on the sixth insulating layer 111. Each LED may include a corresponding pixel electrode, a functional layer, an emitting layer, and a counter electrode. In an embodiment, first LED (LED1) may include a first pixel electrode 113a, a first lower functional layer 114a, a first emitting layer 115a, a first upper functional layer 116a, and a first counter electrode 117a. In an embodiment, second LED (LED2) may include a second pixel electrode 113b, a second lower functional layer 114b, a second emitting layer 115b, a second upper functional layer 116b, and a second counter electrode 117b. In an embodiment, third LED (LED3) may include a third pixel electrode 113c, a third lower functional layer 114c, a third emitting layer 115c, a third upper functional layer 116c, and a third counter electrode 117c. Due to the potential difference between the pixel electrode and the opposite electrode, the emitting layer of each LED can be configured to emit light by the current flowing through the emitting layer. Therefore, the LED can be configured to emit light.

[0088] A fifth conductive layer 113 may be disposed on a sixth insulating layer 111. The fifth conductive layer 113 may include a first pixel electrode 113a, a second pixel electrode 113b, and a third pixel electrode 113c. The first pixel electrode 113a, the second pixel electrode 113b, and the third pixel electrode 113c may be individually patterned and separated from each other. Each of the first pixel electrode 113a, the second pixel electrode 113b, and the third pixel electrode 113c may be connected to a corresponding thin-film transistor (TFT) via a corresponding contact metal CM and a corresponding drain electrode DE. In an embodiment, the fifth conductive layer 113 may include a conductive oxide, including indium tin oxide (ITO), indium zinc oxide (IZO), zinc oxide (ZnO), indium oxide (In2O3), indium gallium oxide (IGO), or zinc aluminum oxide (AZO). In an embodiment, the fifth conductive layer 113 may include silver (Ag), magnesium (Mg), aluminum (Al), platinum (Pt), palladium (Pd), gold (Au), nickel (Ni), neodymium (Nd), iridium (Ir), chromium (Cr), or compounds thereof. The structure and material of the fifth conductive layer 113 are not necessarily limited to this, and various modifications can be made.

[0089] Pixel defining layer 112 may be disposed on fifth conductive layer 113 and sixth insulating layer 111. Pixel defining layer 112 may include multiple emission openings overlapping multiple pixel electrodes of fifth conductive layer 113. For example, pixel defining layer 112 may cover the edge (or edge region) of each pixel electrode of fifth conductive layer 113.

[0090] In one embodiment, the pixel defining layer 112 may include a first emission opening 112a that overlaps with the first pixel electrode 113a. For example, the pixel defining layer 112 may cover the edge (or edge region) of the first pixel electrode 113a. In another embodiment, the emission region of the first light-emitting diode LED1 may be defined by the first emission opening 112a.

[0091] In one embodiment, the pixel defining layer 112 may include a second emission opening 112b that overlaps with the second pixel electrode 113b. For example, the pixel defining layer 112 may cover the edge (or edge region) of the second pixel electrode 113b. In another embodiment, the emission region of the second light-emitting diode LED2 may be defined by the second emission opening 112b.

[0092] In one embodiment, the pixel defining layer 112 may include a third emission opening 112c that overlaps with the third pixel electrode 113c. For example, the pixel defining layer 112 may cover the edge (or edge region) of the third pixel electrode 113c. In another embodiment, the emission region of the third light-emitting diode LED3 may be defined by the third emission opening 112c.

[0093] The lower functional layer 114, the emission layer 115, and the upper functional layer 116 can be sequentially disposed on the pixel limiting layer 112 and the fifth conductive layer 113.

[0094] The lower functional layer 114 may include a first lower functional layer 114a, a second lower functional layer 114b, and a third lower functional layer 114c. In an embodiment, the lower functional layer 114 may be formed from a single, uninterrupted, continuous structure. In an embodiment, the portion of the lower functional layer 114 overlapping with the first pixel electrode 113a may be defined as the first lower functional layer 114a. In an embodiment, the portion of the lower functional layer 114 overlapping with the second pixel electrode 113b may be defined as the second lower functional layer 114b. In an embodiment, the portion of the lower functional layer 114 overlapping with the third pixel electrode 113c may be defined as the third lower functional layer 114c. In an embodiment, the lower functional layers 114 may be configured (e.g., patterned) to be separated from each other and correspond to each light-emitting diode (LED).

[0095] The upper functional layer 116 may include a first upper functional layer 116a, a second upper functional layer 116b, and a third upper functional layer 116c. In one embodiment, the upper functional layer 116 may be formed from a single, uninterrupted continuous structure. In one embodiment, the portion of the upper functional layer 116 overlapping with the first pixel electrode 113a may be defined as the first upper functional layer 116a. In one embodiment, the portion of the upper functional layer 116 overlapping with the second pixel electrode 113b may be defined as the second upper functional layer 116b. In one embodiment, the portion of the upper functional layer 116 overlapping with the third pixel electrode 113c may be defined as the third upper functional layer 116c. In one embodiment, the lower functional layers 114 may be configured (e.g., patterned) to be separated from each other and correspond to each light-emitting diode (LED).

[0096] In one embodiment, the lower functional layer 114 may include at least one of an electron transport layer (ETL) and an electron injection layer (EIL), and the upper functional layer 116 may include at least one of a hole transport layer (HTL) and a hole injection layer (HIL). In another embodiment, the upper functional layer 116 may include at least one of an ETL and an EIL, and the lower functional layer 114 may include at least one of an HTL and a HIL.

[0097] An emitting layer 115 may be disposed between a lower functional layer 114 and an upper functional layer 116. In an embodiment, the emitting layers 115 may be configured (e.g., patterned) to be separate from each other and correspond to each light-emitting diode (LED). In an embodiment, a first emitting layer 115a may be disposed between a first lower functional layer 114a and a first upper functional layer 116a. In an embodiment, the first emitting layer 115a may be disposed within a first emitting opening 112a of the pixel defining layer 112. In an embodiment, a second emitting layer 115b may be disposed between a second lower functional layer 114b and a second upper functional layer 116b. In an embodiment, the second emitting layer 115b may be disposed within a second emitting opening 112b of the pixel defining layer 112. In an embodiment, a third emitting layer 115c may be disposed between a third lower functional layer 114c and a third upper functional layer 116c. In an embodiment, the third emitting layer 115c may be disposed within a third emitting opening 112c of the pixel defining layer 112.

[0098] In one embodiment, the emitting layer 115 may comprise a low molecular weight material or a polymer material configured to emit light when a preset potential difference is applied (or when a preset current flows). In another embodiment, the first emitting layer 115a, the second emitting layer 115b, and the third emitting layer 115c may comprise different materials from each other. In yet another embodiment, the first emitting layer 115a, the second emitting layer 115b, and the third emitting layer 115c may be configured to emit light of different colors (e.g., wavelength bands) from each other. In one embodiment, the first emitting layer 115a may be configured to emit red light when current flows. In another embodiment, the second emitting layer 115b may be configured to emit green light when current flows. In yet another embodiment, the third emitting layer 115c may be configured to emit blue light when current flows.

[0099] A sixth conductive layer 117 may be disposed on the upper functional layer 116. The sixth conductive layer 117 may include a counter electrode of a light-emitting diode (LED). The sixth conductive layer 117 may be formed over the first LED1, the second LED2, and the third LED3 by a single, uninterrupted continuous structure, and may cover the upper functional layer 116. A portion of the sixth conductive layer 117 overlapping with the first pixel electrode 113a, the first lower functional layer 114a, the first emission layer 115a, and the first upper functional layer 116a may be defined as a first counter electrode 117a. A portion of the sixth conductive layer 117 overlapping with the second pixel electrode 113b, the second lower functional layer 114b, the second emission layer 115b, and the second upper functional layer 116b may be defined as a second counter electrode 117b. A portion of the sixth conductive layer 117 that overlaps with the third pixel electrode 113c, the third lower functional layer 114c, the third emission layer 115c, and the third upper functional layer 116c can be defined as the third relative electrode 117c.

[0100] The sixth conductive layer 117 may include a conductive material. In one embodiment, the sixth conductive layer 117 may include a transparent layer (or a translucent layer) comprising silver (Ag), magnesium (Mg), aluminum (Al), platinum (Pt), palladium (Pd), gold (Au), nickel (Ni), neodymium (Nd), iridium (Ir), chromium (Cr), or alloys thereof. Alternatively, the sixth conductive layer 117 may also include a layer on top of a transparent layer (or translucent layer) comprising the above materials, wherein the layer comprises a material such as indium tin oxide (ITO), indium zinc oxide (IZO), zinc oxide (ZnO), or indium oxide (In2O3).

[0101] A thin-film encapsulation layer TFEL can be disposed on the sixth conductive layer 117. The thin-film encapsulation layer TFEL can completely cover the sixth conductive layer 117. The thin-film encapsulation layer TFEL can include at least one inorganic encapsulation layer and at least one organic encapsulation layer. In an embodiment, the thin-film encapsulation layer TFEL can include a first inorganic encapsulation layer 118, a second inorganic encapsulation layer 120, and an organic encapsulation layer 119, wherein the organic encapsulation layer 119 is located between the first inorganic encapsulation layer 118 and the second inorganic encapsulation layer 120. In an embodiment, the first inorganic encapsulation layer 118 can completely cover the sixth conductive layer 117. In an embodiment, the organic encapsulation layer 119 can be configured as a planarization layer.

[0102] In embodiments, the first inorganic encapsulation layer 118 and / or the second inorganic encapsulation layer 120 may include at least one inorganic insulating material, such as silicon oxide (SiO2) or silicon nitride (SiN). x The organic encapsulation layer 119 may include an organic insulating material. In embodiments, the organic encapsulation layer 119 may include a polymer-based material. As examples, polymer-based materials may include silicon-based resins, acrylic-based resins, epoxy-based resins, polyimide, and polyethylene. This disclosure is not necessarily limited to thin-film encapsulation layers (TFELs) of this structure, and the number of one or more inorganic encapsulation layers, the number of one or more organic encapsulation layers, and the stacking order may be varied.

[0103] The touch sensing layer (TSL) can be disposed on the thin-film encapsulation layer (TFEL), for example, on the second inorganic encapsulation layer 120. The touch sensing layer (TSL) can sense external input, such as touch from a finger or a stylus / pen, and allows the display panel 11 to obtain coordinate information corresponding to the touch location. The touch sensing layer (TSL) may include at least one conductive layer and at least one insulating layer.

[0104] The touch sensing layer (TSL) may include a first touch insulating layer 121, a first touch electrode layer 122, a second touch insulating layer 123, a second touch electrode layer 124, and a third touch insulating layer 125. The first touch insulating layer 121 may cover the second inorganic encapsulation layer 120. The first touch electrode layer 122 may be disposed on the first touch insulating layer 121. The second touch insulating layer 123 may be disposed on the first touch electrode layer 122. The second touch electrode layer 124 may be disposed on the second touch insulating layer 123. The third touch insulating layer 125 may be disposed on the second touch electrode layer 124. In one embodiment, the first touch insulating layer 121 may include an inorganic insulating material. In another embodiment, the second touch insulating layer 123 and the third touch insulating layer 125 may include organic insulating materials.

[0105] The first touch electrode layer 122 and the second touch electrode layer 124 can be connected to each other through contact holes defined in the second touch insulating layer 123. In an embodiment, the second touch electrode layer 124 can be a sensing electrode, and the first touch electrode layer 122 can be a bridging electrode. In an embodiment, the first touch electrode layer 122 and the second touch electrode layer 124 can be patterned so as not to overlap with the light-emitting diode (LED). In an embodiment, the first touch electrode layer 122 and the second touch electrode layer 124 can overlap with the pixel defining layer 112. In an embodiment, the first touch electrode layer 122 and the second touch electrode layer 124 can have a mesh (or grid) shape surrounding the light-emitting diode (LED). In an embodiment, the first touch electrode layer 122 and the second touch electrode layer 124 of the touch sensing layer TSL can be configured to measure touch using a self-capacitance method or a mutual capacitance method.

[0106] In one embodiment, a first opening 125a overlapping the first light-emitting diode LED1 and a second opening 125b overlapping the second light-emitting diode LED2 may be defined in the touch sensing layer TSL. In another embodiment, the first opening 125a and the second opening 125b may be defined in the third touch insulating layer 125.

[0107] The optical functional layer OFL can be disposed on the touch sensing layer TSL. The optical functional layer OFL may include an auxiliary color filter layer 126, a color filter layer 127, a first light blocking layer 128, and an outer coating layer 129.

[0108] The auxiliary color filter layer 126 may include a first auxiliary color filter 126a and a second auxiliary color filter 126b. In one embodiment, the first auxiliary color filter 126a may be disposed in the touch sensing layer TSL, for example, in the first opening 125a of the third touch insulating layer 125. In another embodiment, the second auxiliary color filter 126b may be disposed in the touch sensing layer TSL, for example, in the second opening 125b of the third touch insulating layer 125. In one embodiment, the first auxiliary color filter 126a may completely fill the first opening 125a. In another embodiment, the second auxiliary color filter 126b may completely fill the second opening 125b. In yet another embodiment, the upper surfaces of the first auxiliary color filter 126a, the second auxiliary color filter 126b, and the third touch insulating layer 125 may be disposed in the same plane.

[0109] The color filter layer 127 may include a first color filter 127a, a second color filter 127b, and a third color filter 127c. In one embodiment, the first color filter 127a may overlap with the first light-emitting diode (LED1) and the first auxiliary color filter 126a. In another embodiment, the first color filter 127a may be disposed on the first auxiliary color filter 126a. In yet another embodiment, the first auxiliary color filter 126a may be disposed between the first color filter 127a and the first LED1. In yet another embodiment, the first color filter 127a and the first auxiliary color filter 126a may be in direct contact with each other. In yet another embodiment, the lower surface of the first color filter 127a and the upper surface of the first auxiliary color filter 126a may be in direct contact with each other. In yet another embodiment, the second color filter 127b may be disposed on the second auxiliary color filter 126b. In yet another embodiment, the second auxiliary color filter 126b may be disposed between the second color filter 127b and the second LED2. In one embodiment, the second color filter 127b and the second auxiliary color filter 126b can be in direct contact with each other. In another embodiment, the lower surface of the second color filter 127b and the upper surface of the second auxiliary color filter 126b can be in direct contact with each other.

[0110] The first light-blocking layer 128 may overlap with the pixel defining layer 112 and may be disposed on the touch sensing layer TSL. A third opening 128a overlapping with the first light-emitting diode LED1, a fourth opening 128b overlapping with the second light-emitting diode LED2, and a fifth opening 128c overlapping with the third light-emitting diode LED3 may be defined in the first light-blocking layer 128. In one embodiment, the third opening 128a of the first light-blocking layer 128 may overlap with the first opening 125a of the third touch insulating layer 125. In one embodiment, the fourth opening 128b of the first light-blocking layer 128 may overlap with the second opening 125b of the third touch insulating layer 125. In one embodiment, a first color filter 127a may be disposed in the third opening 128a of the first light-blocking layer 128. In one embodiment, a second color filter 127b may be disposed in the fourth opening 128b of the first light-blocking layer 128. In one embodiment, a third color filter 127c may be disposed in the fifth opening 128c of the first light-blocking layer 128.

[0111] In this implementation, because the first light-blocking layer 128 prevents external (e.g., ambient) light from reaching the first touch electrode layer 122 or the second touch electrode layer 124, the first light-blocking layer 128 can prevent the first touch electrode layer 122 or the second touch electrode layer 124 from reflecting external (e.g., ambient) light and can prevent it from being observed by the user. In this implementation, the first light-blocking layer 128 can improve brightness and / or color reproduction by preventing light emitted from one of the light-emitting diodes (LEDs) from entering the optical path of an adjacent LED.

[0112] The outer coating 129 can completely cover the color filter layer 127 and the first light-blocking layer 128, and can be configured as a planarization layer. The outer coating 129 may include a light-transmitting material and an organic insulating material.

[0113] In one embodiment, the first color filter 127a, the second color filter 127b, and the third color filter 127c can transmit light of different colors (e.g., wavelength bands) from each other. In one embodiment, the first color filter 127a can transmit red light. In one embodiment, the second color filter 127b can transmit green light. In one embodiment, the third color filter 127c can transmit blue light.

[0114] In one embodiment, the first auxiliary color filter 126a and the second auxiliary color filter 126b can transmit light of the same color. In another embodiment, the first auxiliary color filter 126a and the second auxiliary color filter 126b can transmit light of a combination of colors transmitted by the first color filter 127a and the second color filter 127b. In one embodiment, the first color filter 127a can transmit red light, the second color filter 127b can transmit green light, and the first auxiliary color filters 126a and the second auxiliary color filters 126b can transmit yellow light of a combination of red and green light. In one embodiment, the first auxiliary color filter 126a and the second auxiliary color filter 126b may include a yellow dye. In one embodiment, the first auxiliary color filter 126a and the second auxiliary color filter 126b can transmit yellow light, for example, light with a wavelength of 500 nm or greater. In another embodiment, the first auxiliary color filter 126a and the second auxiliary color filter 126b can block light with a wavelength of 500 nm or less.

[0115] In one embodiment, at least one of the first color filter 127a, the second color filter 127b, and the third color filter 127c can be formed by an inkjet process. In another embodiment, the first color filter 127a can be formed by jetting a first ink (e.g., including a red dye) into a third opening 128a of the first light-blocking layer 128 and then curing the first ink. In another embodiment, the second color filter 127b can be formed by jetting a second ink (e.g., including a green dye) into a fourth opening 128b of the first light-blocking layer 128 and then curing the second ink. In yet another embodiment, the third color filter 127c can be formed by jetting a third ink (e.g., including a blue dye) into a fifth opening 128c of the first light-blocking layer 128 and then curing the third ink.

[0116] In one embodiment, the first auxiliary color filter 126a and / or the second auxiliary color filter 126b can be formed by an inkjet process. In another embodiment, the first auxiliary color filter 126a can be formed by jetting ink (e.g., including a yellow dye) into a first opening 125a of a third touch insulating layer 125 and then curing the ink. In another embodiment, the second auxiliary color filter 126b can be formed by jetting ink (e.g., including a yellow dye) into a second opening 125b of the third touch insulating layer 125 and then curing the ink. In yet another embodiment, the process for forming the first auxiliary color filter 126a (e.g., an inkjet process) and the process for forming the second auxiliary color filter 126b (e.g., an inkjet process) can be performed simultaneously.

[0117] In the comparative example, without the first auxiliary color filter 126a, the first color filter 127a may have 0% or greater transmittance for light in wavelength bands outside the red light wavelength band (e.g., about 630 nm to about 750 nm) (e.g., about 500 nm or less). When the first color filter 127a has transmittance for light even in wavelengths of about 500 nm or less, the light passing through the first color filter 127a may not be recognized as pure red light. Therefore, because the first auxiliary color filter 126a is positioned below the first color filter 127a to block light in wavelength bands of about 500 nm or less, the color characteristics of the red light from the first color filter 127a can be improved. For example, because the first auxiliary color filter 126a is additionally provided, the light emitted from the first light-emitting diode LED1 that passes through the first auxiliary color filter 126a and the first color filter 127a and can be observed by the user is closer to pure red light.

[0118] In the comparative example, when the yellow dye or dye that blocks light in a wavelength band of about 500 nm or less, included in the first auxiliary color filter 126a, is incorporated into the first ink, the viscosity of the first ink in the first color filter 127a can be greater than in the case where no dye is present. The high viscosity of the ink can lead to defects in the inkjet process. Therefore, because the dye is not included in the first color filter 127a and a separate color filter, such as the first auxiliary color filter 126a, is used, the viscosity of the first ink in the first color filter 127a can be reduced, and the defect rate of the inkjet process with the first color filter 127a can be reduced.

[0119] In the comparative example, when the yellow dye or dye that blocks light in a wavelength band of about 500 nm or less, included in the second auxiliary color filter 126b, is incorporated into the second ink, the viscosity of the second ink in the second color filter 127b can be greater than in the case where no dye is present. Similar to the case of the first color filter 127a, because the dye is not included in the second color filter 127b and there is a separate color filter, such as the second auxiliary color filter 126b, the viscosity of the second ink in the second color filter 127b can be reduced, and the defect rate of the inkjet process with the second color filter 127b can be reduced.

[0120] Figure 8A This is a cross-sectional view of the display panel 11 according to the embodiment. Figure 8B This is a plan view of the display panel according to the implementation method. Figure 8C This is a plan view of the display panel according to the implementation method.

[0121] Figure 8B The third touch insulating layer 125 and the auxiliary color filter layer 126 are shown, as well as Figure 8C The first light-blocking layer 128 and the color filter layer 127 are shown.

[0122] refer to Figure 8A , Figure 8B and Figure 8C The first auxiliary color filter 126a and the second auxiliary color filter 126b may include scatterers. In one embodiment, the first auxiliary color filter 126a may include a first scatterer 126c. In another embodiment, the first scatterer 126c may be dispersed within the first auxiliary color filter 126a. In yet another embodiment, the first scatterer 126c may include light-scattering particles and scatter at least a portion of the light passing through the first auxiliary color filter 126a.

[0123] In one embodiment, the second auxiliary color filter 126b may include a second scatterer 126d. In another embodiment, the second scatterer 126d may be dispersed within the second auxiliary color filter 126b. In yet another embodiment, the second scatterer 126d may include light-scattering particles and scatter at least a portion of the light passing through the second auxiliary color filter 126b.

[0124] refer to Figure 8B and Figure 8C The first auxiliary color filter 126a may have a closed-loop shape (or frame) overlapping the edge region of the first color filter 127a. In an embodiment, the first opening 125a of the third touch insulating layer 125 may have a closed-loop shape (or frame) overlapping the edge region of the first color filter 127a, and the first auxiliary color filter 126a may fill the first opening 125a. In an embodiment, the first opening 125a of the third touch insulating layer 125 may have a closed-loop shape (or frame), the first auxiliary color filter 126a may fill the first opening 125a, the edge of the third opening 128a of the first light blocking layer 128 may coincide with the first opening 125a of the third touch insulating layer 125, and the first color filter 127a may fill the third opening 128a. In an embodiment, the area of ​​the first auxiliary color filter 126a (or the area of ​​the first opening 125a) may be about 15% or less of the area of ​​the first color filter 127a (or the area of ​​the third opening 128a).

[0125] The second auxiliary color filter 126b may have a closed-loop shape (or frame) overlapping the edge region of the second color filter 127b. In an embodiment, the second opening 125b of the third touch insulating layer 125 may have a closed-loop shape (or frame) overlapping the edge region of the second color filter 127b, and the second auxiliary color filter 126b may fill the second opening 125b. In an embodiment, the second opening 125b of the third touch insulating layer 125 may have a closed-loop shape (or frame), the second auxiliary color filter 126b may fill the second opening 125b, the edge of the fourth opening 128b of the first light blocking layer 128 may coincide with the second opening 125b of the third touch insulating layer 125, and the second color filter 127b may fill the fourth opening 128b. In an embodiment, the area of ​​the second auxiliary color filter 126b (or the area of ​​the second opening 125b) may be about 15% or less of the area of ​​the second color filter 127b (or the area of ​​the fourth opening 128b).

[0126] Figure 9 This is a cross-sectional view of the display panel 11 according to the embodiment.

[0127] refer to Figure 9 Two color filters selected from the first color filter 127a, the second color filter 127b, and the third color filter 127c can overlap each other on the first light-blocking layer 128. In one embodiment, the first color filter 127a can completely fill the third opening 128a of the first light-blocking layer 128, and a portion of the first color filter 127a can be disposed on the upper surface of the first light-blocking layer 128. In another embodiment, the second color filter 127b can completely fill the fourth opening 128b of the first light-blocking layer 128, and a portion of the second color filter 127b can be disposed on the upper surface of the first light-blocking layer 128. In yet another embodiment, the third color filter 127c can completely fill the fifth opening 128c of the first light-blocking layer 128, and a portion of the third color filter 127c can be disposed on the upper surface of the first light-blocking layer 128.

[0128] In one embodiment, the first color filter 127a and the second color filter 127b may partially overlap each other on the first light-blocking layer 128. In another embodiment, the first color filter 127a and the second color filter 127b may overlap each other on a portion of the first light-blocking layer 128 disposed between the third opening 128a and the fourth opening 128b. In yet another embodiment, the second color filter 127b may be disposed on the first color filter 127a.

[0129] In one embodiment, the second color filter 127b and the third color filter 127c may partially overlap each other on the first light-blocking layer 128. In another embodiment, the second color filter 127b and the third color filter 127c may overlap each other on a portion of the first light-blocking layer 128 disposed between the fourth opening 128b and the fifth opening 128c. In yet another embodiment, the second color filter 127b may be disposed on the third color filter 127c.

[0130] In one embodiment, the first color filter 127a and the third color filter 127c may partially overlap each other on the first light-blocking layer 128. In another embodiment, the third color filter 127c may be disposed on the first color filter 127a.

[0131] However, this disclosure is not necessarily limited to the stacking order of the first color filter 127a, the second color filter 127b, and the third color filter 127c, and the stacking order of the first color filter 127a, the second color filter 127b, and the third color filter 127c can be modified in various ways.

[0132] A second light-blocking layer 130 may be disposed on the color filter layer 127. In one embodiment, the second light-blocking layer 130 may be disposed on the first light-blocking layer 128. In one embodiment, the second light-blocking layer 130 may cover at least two overlapping color filters selected from the first color filter 127a, the second color filter 127b, and the third color filter 127c. In one embodiment, the second light-blocking layer 130 may cover the portion where the first color filter 127a and the second color filter 127b overlap. In one embodiment, the second light-blocking layer 130 may cover the portion where the second color filter 127b and the third color filter 127c overlap. In one embodiment, the second light-blocking layer 130 may cover the portion where the first color filter 127a and the third color filter 127c overlap. A sixth opening 130a overlapping with the first light-emitting diode LED1, a seventh opening 130b overlapping with the second light-emitting diode LED2, and an eighth opening 130c overlapping with the third light-emitting diode LED3 can be defined in the second light-blocking layer 130.

[0133] Figure 10 This is a cross-sectional view of the display panel 11 according to the embodiment.

[0134] refer to Figure 10 The optical functional layer OFL may not include the first light-blocking layer 128 (see Figure 7 ) and / or the second light-blocking layer 130 (see Figure 9 ).

[0135] In one implementation, each color filter of the color filter layer 127 may be entirely disposed on the touch sensing layer TSL, and may not be disposed in areas overlapping with other light-emitting diodes (LEDs) besides the corresponding LED. For example, each color filter of the color filter layer 127 may include an opening that overlaps with other LEDs besides the corresponding LED.

[0136] In one embodiment, the first color filter 127a may overlap with the first light-emitting diode LED1, the first auxiliary color filter 126a, and the pixel defining layer 112. In another embodiment, the first color filter 127a may be open to avoid overlapping with the second light-emitting diode LED2 and / or the third light-emitting diode LED3.

[0137] In one embodiment, the second color filter 127b may overlap with the second light-emitting diode LED2, the second auxiliary color filter 126b, and the pixel defining layer 112. In another embodiment, the second color filter 127b may be open to avoid overlapping with the first light-emitting diode LED1 and / or the third light-emitting diode LED3.

[0138] In one embodiment, the third color filter 127c may overlap with the third light-emitting diode LED3 and the pixel defining layer 112. In another embodiment, the third color filter 127c may be open so as not to overlap with the first light-emitting diode LED1 and / or the second light-emitting diode LED2.

[0139] With the above structure, color filters that transmit light of the corresponding color can be disposed on each light-emitting diode (LED). In an embodiment, a first color filter 127a can be disposed on the first light-emitting diode (LED1), a second color filter 127b can be disposed on the second light-emitting diode (LED2), and a third color filter 127c can be disposed on the third light-emitting diode (LED3).

[0140] Furthermore, the respective color filters of the color filter layer 127 can overlap each other in the region between the respective light-emitting diodes (LEDs), for example, in the region overlapping with the pixel defining layer 112. In an embodiment, the first color filter 127a, the second color filter 127b, and the third color filter 127c can overlap each other in the region overlapping with the pixel defining layer 112. In an embodiment, the third color filter 127c can be disposed on the first color filter 127a, and the second color filter 127b can be disposed on the third color filter 127c. However, this disclosure is not necessarily limited to this stacking order.

[0141] The first color filter 127a, the second color filter 127b, and the third color filter 127c can transmit light of different colors (e.g., wavelength bands) from each other. Therefore, for example, light passing through the first color filter 127a cannot pass through the second color filter 127b and / or the third color filter 127c. Similarly, light passing through the second color filter 127b cannot pass through the first color filter 127a and / or the third color filter 127c. Similarly, light passing through the third color filter 127c cannot pass through the first color filter 127a and / or the second color filter 127b. In an embodiment, light may not pass through the overlapping structure of the first color filter 127a, the second color filter 127b, and the third color filter 127c disposed between the respective light-emitting diodes (LEDs). Therefore, the overlapping structure of the first color filter 127a, the second color filter 127b, and the third color filter 127c can be used as a light-blocking layer. For example, a first light-blocking layer 128 (see...) Figure 7 ) and the second light-blocking layer 130 (see Figure 9 It can be replaced by an overlapping structure of the first color filter 127a, the second color filter 127b and the third color filter 127c.

[0142] According to an embodiment, a display panel is provided that includes a first auxiliary color filter and a second auxiliary color filter disposed below a first color filter to a third color filter, and an electronic device including the display panel. Therefore, the quality of the display panel and / or the process of arranging the first color filter to the third color filter (e.g., inkjet process) can be improved.

[0143] It should be understood that the embodiments described herein should be considered descriptive and not necessarily for limiting purposes. Descriptions of features or aspects within each embodiment should generally be considered applicable to other similar features or aspects in other embodiments. While one or more embodiments have been described with reference to the accompanying drawings, those skilled in the art will understand that various changes in form and detail may be made therein without departing from the spirit and scope of this disclosure.

Claims

1. A display panel, comprising: Substrate; The first light-emitting diode, the second light-emitting diode, and the third light-emitting diode are each disposed on the substrate and spaced apart from each other; A touch sensing layer is disposed on each of the first light-emitting diode, the second light-emitting diode, and the third light-emitting diode, the touch sensing layer having a first opening overlapping the first light-emitting diode and a second opening overlapping the second light-emitting diode; A first auxiliary color filter is disposed in the first opening in the touch sensing layer; A second auxiliary color filter is disposed in the second opening in the touch sensing layer; A first color filter is disposed on the touch sensing layer and overlaps with the first light-emitting diode; A second color filter is disposed on the touch sensing layer and overlaps with the second light-emitting diode; as well as A third color filter is disposed on the touch sensing layer and overlaps with the third light-emitting diode. The first auxiliary color filter and the second auxiliary color filter are configured to transmit light of the same color.

2. The display panel according to claim 1, wherein, The first color filter is in direct contact with the upper surface of the first auxiliary color filter, and the second color filter is in direct contact with the upper surface of the second auxiliary color filter.

3. The display panel according to claim 1, wherein, The first auxiliary color filter and the second auxiliary color filter each include a scatterer.

4. The display panel according to claim 3, wherein, The first auxiliary color filter has a closed-loop shape that overlaps with the edge region of the first color filter, and the second auxiliary color filter has a closed-loop shape that overlaps with the edge region of the second color filter.

5. The display panel according to claim 1, wherein, The upper surfaces of the first auxiliary color filter, the second auxiliary color filter, and the touch sensing layer are disposed in the same plane.

6. The display panel according to claim 1, wherein, The first auxiliary color filter and the second auxiliary color filter are each configured to transmit light of a certain color, which is the result of a combination of a first light emitted from the first light-emitting diode and a second light emitted from the second light-emitting diode.

7. The display panel according to claim 1, wherein, The first auxiliary color filter and the second auxiliary color filter each include a yellow dye.

8. The display panel according to claim 1, wherein, The first auxiliary color filter and the second auxiliary color filter are each configured to block light at wavelengths of 500 nm or less.

9. A display panel, comprising: Substrate; A first light-emitting diode is disposed above the substrate and configured to emit a first light of a first color; A second light-emitting diode is disposed above the substrate and configured to emit a second light of a second color; A third light-emitting diode is disposed above the substrate and configured to emit a third light of a third color; A first color filter is overlapped with the first light-emitting diode and configured to transmit light of the first color; A second color filter is overlapped with the second light-emitting diode and configured to transmit light of the second color; A third color filter is overlapped with the third light-emitting diode and configured to transmit light of the third color; A first auxiliary color filter is disposed between the first light-emitting diode and the first color filter; as well as A second auxiliary color filter is disposed between the second light-emitting diode and the second color filter. The first auxiliary color filter and the second auxiliary color filter are each configured to transmit light of a color resulting from the combination of the first light and the second light.

10. The display panel of claim 9, further comprising a touch sensing layer disposed between the first color filter and the third color filter and between the first light-emitting diode and the third light-emitting diode, and including a first opening overlapping the first light-emitting diode and a second opening overlapping the second light-emitting diode. in, The first auxiliary color filter is disposed in the first opening in the touch sensing layer, and The second auxiliary color filter is disposed in the second opening in the touch sensing layer.

11. The display panel according to claim 10, wherein, The upper surfaces of the first auxiliary color filter, the second auxiliary color filter, and the touch sensing layer are disposed in the same plane.

12. The display panel according to claim 9, wherein, The first auxiliary color filter and the second auxiliary color filter each include a scatterer.

13. The display panel according to claim 12, wherein, The first auxiliary color filter has a closed-loop shape that overlaps with the edge region of the first color filter, and the second auxiliary color filter has a closed-loop shape that overlaps with the edge region of the second color filter.

14. The display panel according to claim 9, wherein, The first auxiliary color filter and the second auxiliary color filter each include a yellow dye.

15. The display panel according to claim 9, wherein, Each of the first auxiliary color filter and the second auxiliary color filter is configured to block light at wavelengths of 500 nm or less.

16. The display panel according to claim 9, wherein, The first light-emitting diode, the second light-emitting diode, and the third light-emitting diode are configured to emit light of different colors from each other.

17. An electronic device comprising: Display panel; as well as The processor is configured to drive the display panel. The display panel includes: Substrate; A first light-emitting diode, a second light-emitting diode, and a third light-emitting diode are disposed on the substrate and spaced apart from each other; A touch sensing layer is disposed on each of the first light-emitting diode, the second light-emitting diode, and the third light-emitting diode, the touch sensing layer having a first opening overlapping the first light-emitting diode and a second opening overlapping the second light-emitting diode; A first auxiliary color filter is disposed in the first opening in the touch sensing layer; A second auxiliary color filter is disposed in the second opening in the touch sensing layer; A first color filter is disposed on the touch sensing layer and overlaps with the first light-emitting diode; A second color filter is disposed on the touch sensing layer and overlaps with the second light-emitting diode; and A third color filter is disposed on the touch sensing layer and overlaps with the third light-emitting diode. The first auxiliary color filter and the second auxiliary color filter are configured to transmit light of the same color.

18. The electronic device according to claim 17, wherein, The first auxiliary color filter and the second auxiliary color filter each include a scatterer.

19. The electronic device according to claim 17, wherein, The first auxiliary color filter and the second auxiliary color filter each include a yellow dye.

20. The electronic device according to claim 17, wherein, The first auxiliary color filter and the second auxiliary color filter are each configured to block light at wavelengths of 500 nm or less.

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